Method and Apparatus for Allocating and Signaling Ack/Nack Resources in a Wireless Communication System

1. A method performed by a user equipment in a wireless communication system, the method comprising: receiving, from a base station, data on a downlink data channel; determining whether a scheduling type of the downlink data channel is persistent or non-persistent; and transmitting, to the base station, acknowledgement/negative acknowledgement (ACK/NACK) information for the data, wherein, when the scheduling type is non-persistent, the ACK/NACK information is transmitted on a first resource determined according to a downlink control channel corresponding to the data, and wherein, when the scheduling type is persistent the ACK/NACK information for an initial persistent data transmission is transmitted on a second resource determined according to the downlink control channel, and the ACK/NACK information for a following persistent data transmission is transmitted on a third resource determined by using resource information received via high-layer signaling.

2. The method of claim 1 , wherein the first resource is further determined based on an index of a resource for the downlink control channel.

3. The method of claim 1 , wherein the determination of the scheduling type is based on a part of control information on the downlink control channel.

4. The method of claim 3 , wherein the control information includes resource allocation information for the data and modulation and coding scheme (MCS) information for the data.

5. A user equipment in a wireless communication system, the user equipment comprising: a transceiver; and a controller configured to: receive, from a base station via the transceiver, data on a downlink data channel; determine whether a scheduling type of the downlink data channel is persistent or non-persistent; and transmit, to the base station via the transceiver, acknowledgement/negative acknowledgement (ACK/NACK) information for the data, wherein, when the scheduling type is non-persistent, the ACK/NACK information is transmitted on a first resource determined according to a downlink control channel corresponding to the data, and wherein, when the scheduling type is persistent, the ACK/NACK information for an initial persistent data transmission is transmitted on a second resource determined according to the downlink control channel, and the ACK/NACK information for a following persistent data transmission is transmitted on a third resource determined by using resource information received via high-layer signaling.

6. The user equipment of claim 5 , wherein the first resource is further determined based on an index of a resource for the downlink control channel.

7. The user equipment of claim 5 , wherein the determination of the scheduling type is based on a part of control information on the downlink control channel.

8. The user equipment of claim 7 , wherein the control information includes resource allocation information for the data and modulation and coding scheme (MCS) information for the data.

9. A method performed by a base station in a wireless communication system, the method comprising: determining a scheduling type of a downlink data channel as either persistent or non-persistent; transmitting, to a user equipment, data on the downlink data channel based on the determination; and receiving, from the user equipment, acknowledgment/negative acknowledgment (ACK/NACK) information for the data, wherein, when the scheduling type is non-persistent, the ACK/NACK information is received on a first a resource determined according to a downlink control channel, and wherein, when the scheduling type is persistent, the ACK/NACK information for an initial persistent data transmission is received on a second resource determined according to the downlink control channel, and the ACK/NACK information for a following persistent data transmission is received on a third resource determined by using resource information transmitted via-a high-layer signaling.

10. The method of claim 9 , wherein the first resource is further determined based on an index of a resource for the downlink control channel.

11. The method of claim 9 , wherein the scheduling type is associated with a part of control information on the downlink control channel.

12. The method of claim 11 , wherein the control information includes resource allocation information for the data and modulation and coding scheme (MCS) information for the data.

13. A base station in a wireless communication system, the base station comprising: a transceiver; and a controller configured to: determine a scheduling type of a downlink data channel either persistent or non-persistent; transmit, to a user equipment via the transceiver, data on the downlink data channel based on the determination; and receive, from the user equipment via the transceiver, acknowledgement/negative acknowledgement (ACK/NACK) information for the data, wherein, when the scheduling type is non-persistent, the ACK/NACK information is received on a first resource determined according to a downlink control channel, and wherein, when the scheduling type is persistent, the ACK/NACK information for an initial persistent data transmission is received on a second resource determined according to the downlink control channel, and the ACK/NACK information for a following persistent data transmission is received on a third resource determined by using resource information transmitted via high-layer signaling.

14. The base station of claim 13 , wherein the first resource is further determined based on an index of a resource for the downlink control channel.

15. The base station of claim 13 , wherein the scheduling type is associated with a part of control information on the downlink control channel.

16. The base station of claim 15 , wherein the control information includes resource allocation information for data and modulation and coding scheme (MCS) information for the data.